Grissom

02161, 1931 UN, 1931UN, 1963 UD, 1963UD, 1976 OK, 1976OK, J31U00N, J63U00D, J76O00K

All data for this body: [vot]

MPC data
Name (number) Grissom (2161)
a 2.74770
e 0.16240
i / sin(i) 7.3015 / 0.12709
q 2.30148
Q 3.19392
ω 248.9264
Node 126.3597
m 199.6163
n 0.2164
Epoch 2460800.5
nobs 5774
nopp 33
Years observed 1931-2025
rms 0.60
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.748
ep 0.121
sin(ip) 0.112
G 0.150
H 12.300
Mass
D 15.90 0.114
pV 0.073 0.0027
Value
Rotational Period 5.063
Period quality 2+
Spectral Class C
Spectral Class Score 10.046
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7481 0.1212 0.1123 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
14.24 3.550 3.550 Masiero 2020PSJ.....1....5M NEATM
15.04 3.320 3.320 Masiero 2020PSJ.....1....5M NEATM
15.86 0.115 0.115 Masiero 2011ApJ...741...68M NEATM
16.67 5.720 5.720 Nugent 2016AJ....152...63N NEATM
21.97 1.490 1.490 Usui 2011PASJ...63.1117U NEATM
22.66 4.530 4.530 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.049 0.0200 0.0200 Ali-Lagoa 2018A&A...612A..85A NEATM
0.070 0.0600 0.0600 Nugent 2016AJ....152...63N NEATM
0.074 0.0027 0.0027 Masiero 2011ApJ...741...68M NEATM
0.134 0.0800 0.0800 Masiero 2020PSJ.....1....5M NEATM
0.147 0.0830 0.0830 Masiero 2020PSJ.....1....5M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2023-12-94 MPC-2023-12-94 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
12.30 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
5.058 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
5.062 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
5.0633 2+ Synodic Vinson 2014MPBu...41..169V Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C Bus VIS Bus 2002Icar..158..146B SPEC
C 0.841 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
M P 0.450000 0.450000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC